*{
  margin: 0;
  padding: 0;
}
body{
  font-family: "Source Sans Pro","Hiragino Sans GB","Microsoft Yahei",SimSun,Helvetica,Arial,Sans-serif,monospace;
}
@media(width:375) {
  html{
      font-size: 37.5px;
  }
}
@media(width:320) {
  html{
      font-size: 32px;
  }
}
a{
  color: #000;
  text-decoration: none;
}
li{
  list-style: none;
}
.container{
  position: relative;
  width: 1240px;
  margin: 0 auto;
}
body{
  background-color: #f0f3f4;
}
img{
  vertical-align:bottom;
}